Viscoelastic love-type surface waves
Roger D. Borcherdt
2008, Conference Paper, The 14th World Conference on Earthquake Engineering
The general theoretical solution for Love-Type surface waves in viscoelastic media provides theoreticalexpressions for the physical characteristics of the waves in elastic as well as anelastic media with arbitraryamounts of intrinsic damping. The general solution yields dispersion and absorption-coefficient curves for the waves as a function of frequency and theamount...
Sediment transport measurements
P. Diplas, R. Kuhnle, J. Gray, D. Glysson, T. Edwards
Marcelo H. Garcia, editor(s)
2008, Book chapter, Sedimentation engineering: Processes, measurements, modeling, and practice
Sediment erosion, transport, and deposition in fluvial systems are complex processes that are treated in detail in other sections of this book. Development of methods suitable for the collection of data that contribute to understanding these processes is a still-evolving science. Sediment and ancillary data are fundamental requirements for the...
Estimating sediment discharge: Appendix D
John R. Gray, Francisco J. M. Simões
2008, Book chapter, Sedimentation engineering: processes, measurements, modeling, and practice
Sediment-discharge measurements usually are available on a discrete or periodic basis. However, estimates of sediment transport often are needed for unmeasured periods, such as when daily or annual sediment-discharge values are sought, or when estimates of transport rates for unmeasured or hypothetical flows are required. Selected methods for estimating suspended-sediment,...
National Land Cover Database 2001 (NLCD01) Tile 3, Southwest United States: NLCD01_3
Andrew LaMotte
2008, Data Series 383-C
This 30-meter data set represents land use and land cover for the conterminous United States for the 2001 time period. The data have been arranged into four tiles to facilitate timely display and manipulation within a Geographic Information System (see http://water.usgs.gov/GIS/browse/nlcd01-partition.jpg).The National Land Cover Data Set for 2001 was produced...
The Early Oligocene Copperas Creek Volcano and geology along New Mexico Higway 15 between Sapillo Creek and the Gila Cliff Dwellings National Monument, Grant and Catron Counties, New Mexico
James C. Ratte
Greg Mack, James Witcher, Virgil W. Lueth, editor(s)
2008, Conference Paper, New Mexico Geological Society Fall Field Conference Guidebook 59 Geology of the Gila Wilderness-Silver City area
The section of New Mexico Highway 15 between the intersection of NM-15 and NM 35 (aka Sapillo junction) at the south and the Gila Cliff Dwellings National Monument at the north end of NM –15 occupies an approximately 18 mile long, mile wide, corridor through the eastern part of the...
Geology along the Catwalk National Recreation trail
James C. Ratte
Greg Mack, James Witcher, Virgil W. Lueth, editor(s)
2008, Conference Paper, New Mexico Geological Society Fall Field Conference Guidebook_59 Geology of the Gila Wilderness-Silver City area
Region-wide trends of nesting ospreys in northwestern Mexico: a three-decade perspective
Charles J. Henny, Daniel W. Anderson, Aradit Castellanos Vera, Jean-Luc E. Cartron
2008, Journal of Raptor Research (42) 229-242
We used a double-sampling technique (air plus ground survey) in 2006, with partial double coverage, to estimate the present size of the Osprey (Pandion haliaetus) nesting population in northwestern Mexico (coastal Baja California, islands in the Gulf of California, and coastal Sonora and Sinaloa). With the exception of Natividad, Cedros,...
Landslides and engineering geology of the Seattle, Washington, area
Rex L. Baum, Jonathan W. Godt, Lynn M. Highland
2008, Book
This volume brings together case studies and summary papers describing the application of state-of-the-art engineering geologic methods to landslide hazard analysis for the Seattle, Washington, area. An introductory chapter provides a thorough description of the Quaternary and bedrock geology of Seattle. Nine additional chapters review the history of landslide mapping...
The Nation's top 25 construction aggregates producers
Jason Christopher Willett
2008, Aggregates Manager (13) 50-56
High Resolution Imaging Science Experiment (HiRISE) observations of glacial and periglacial morphologies in the circum-Argyre Planitia highlands, Mars
Maria E. Banks, Alfred S. McEwen, Jeffrey S. Kargel, Victor R. Baker, Robert G. Strom, Michael T. Mellon, Virginia C. Gulick, Laszlo P. Keszthelyi, Kenneth E. Herkenhoff, Jon D. Pelletier, Windy L. Jaeger
2008, Journal of Geophysical Research E: Planets (113)
The landscape of the Argyre Planitia and adjoining Charitum and Nereidum Montes in the southern hemisphere of Mars has been heavily modified since formation of the Argyre impact basin. This study examines morphologies in the Argyre region revealed in images acquired by the High Resolution Imaging Science Experiment (HiRISE) camera...
Mineral resource of the month: iron oxide pigments
Water Resources Division, U.S. Geological Survey
2008, Earth (53) 25-25
The article discusses iron oxide pigments, which have been used as colorants since human began painting as they resist color change due to sunlight exposure, have good chemical resistance and are stable under normal ambient conditions. Cyprus, Italy and Spain are among the countries that are known for the production...
Converting HAZUS capacity curves to seismic hazard-compatible building fragility functions: effect of hysteretic models
Hyeuk Ryu, Nicolas Luco, Jack W. Baker, Erdem Karaca
2008, Conference Paper, The 14th world conference on earthquake engineering: innovation, practice, safety: October 12-17, 2008, Beijing, China
A methodology was recently proposed for the development of hazard-compatible building fragility models using parameters of capacity curves and damage state thresholds from HAZUS (Karaca and Luco, 2008). In the methodology, HAZUS curvilinear capacity curves were used to define nonlinear dynamic SDOF models that were subjected to the nonlinear time...
Petroleum systems of the San Joaquin Basin Province -- geochemical characteristics of gas types: Chapter 10 in Petroleum systems and geologic assessment of oil and gas in the San Joaquin Basin Province, California
Paul G. Lillis, Augusta Warden, George E. Claypool, Leslie B. Magoon
2008, Professional Paper 1713-10
The San Joaquin Basin Province is a petroliferous basin filled with predominantly Late Cretaceous to Pliocene-aged sediments, with organic-rich marine rocks of Late Cretaceous, Eocene, and Miocene age providing the source of most of the oil and gas. Previous geochemical studies have focused on the origin of the oil in...
Future intrusion of oxygenated glacial meltwaters into the Fennoscandian shield: A possibility to consider in performance assessments for nuclear-waste disposal sites?
Pierre Glynn
2008, Book chapter, Review of SKB's safety assessment SR-Can: Contributions in support of SKI's and SSI's review by external consultants
Provost et al. (1998) and Glynn and Voss (1999; also published in Glynn et al., 1999) considered the possibility that during future glaciations, oxygenated glacial meltwaters from two- to three-kilometer thick ice sheets could potentially intrude to the 500 m depth of planned nuclear-waste repositories. This possibility has been of...
Mineral resource of the month: Graphite
Water Resources Division, U.S. Geological Survey
2008, Earth (53) 29-29
The article presents facts about graphite ideal for industrial applications. Among the characteristics of graphite are its metallic luster, softness, perfect basal cleavage and electrical conductivity. Batteries, brake linings and powdered metals are some of the products that make use of graphite. It attributes the potential applications for graphite in...
Mineral resource of the month: strontium
Joyce A. Ober
2008, Geotimes (2008)
Last month as Americans sat transfixed watching fireworks on July 4, they were probably unaware that strontium was responsible for the beautiful reds in the display. Strontium, a soft silver-white or yellowish metallic element that turns yellow when exposed to air (and red when it burns), is prized for its...
Mineral resource of the month: peat
Stephen M. Jasinski
2008, Geotimes (2008)
Peat is a natural organic material of botanical origin, harvested from deposits in bogs and fens. Commercial deposits form from the incomplete decomposition of plant matter under anaerobic conditions and gradually accumulate to form peat over about a 5,000-year period....
Mineral resource of the month: antimony
Water Resources Division, U.S. Geological Survey
2008, Earth (53) 29-29
The article describes the characteristics and industrial uses of antimony. Antimony, which is produced as a byproduct of mining other metals such as gold, lead or silver, is used in everything from flame retardants, batteries, ceramics and glass. It is also used in glass for television picture tubes, computer monitors,...
Mineral resource of the month: arsenic
William E. Brooks
2008, Geotimes (2008)
Arsenic has a long and varied history: Although it was not isolated as an element until the 13th century, it was known to the ancient Chinese, Egyptians and Greeks in compound form in the minerals arsenopyrite, realgar and orpiment. In the 1400s, “Scheele’s Green” was first used as an arsenic...
Development of the U.S. Geological Survey's PAGER system (Prompt Assessment of Global Earthquakes for Response)
D.J. Wald, P.S. Earle, T.I. Allen, K. Jaiswal, K. Porter, M. Hearne
2008, Conference Paper, The 14th World Conference on Earthquake Engineering: October 12-17, 2008, Beijing, China
The Prompt Assessment of Global Earthquakes for Response (PAGER) System plays a primary alerting role for global earthquake disasters as part of the U.S. Geological Survey’s (USGS) response protocol. We provide an overview of the PAGER system, both of its current capabilities and our ongoing research and development. PAGER monitors...
Mineral resource of the month: cultured quartz crystal
Water Resources Division, U.S. Geological Survey
2008, Earth (53) 29-29
The article presents information on cultured quartz crystals, a mineral used in mobile phones, computers, clocks and other devices controlled by digital circuits. Cultured quartz, which is synthetically produced in large pressurized vessels known as autoclaves, is useful in electronic circuits for precise filtration, frequency control and timing for consumer...
Duck migration and past influenza A (H5N1) outbreak areas
Nicolas Gaidet, Scott H. Newman, Ward Hagemeijer, Tim Dodman, Julien Cappelle, Saliha Hammoumi, Lorenzo De Simone, John Y. Takekawa
2008, Emerging Infectious Diseases (14) 1164-1166
In 2005 and 2006, the highly pathogenic avian influenza (HPAI) virus subtype H5N1 rapidly spread from Asia through Europe, the Middle East, and Africa. Waterbirds are considered the natural reservoir of low pathogenic avian influenza viruses (1), but their potential role in the spread of HPAI (H5N1), along with legal...
Exploration review
D.R. Wilburn
2008, Mining Engineering (60) 45-57
This summary of international mineral exploration activities for the year 2007 draws upon available information from industry, literature and U.S. Geological Survey (USGS) specialists. The summary provides data on exploration budgets by region and mineral commodity, identifies significant mineral discoveries and areas of mineral exploration, discusses government programs affecting the...
Miocene Total Petroleum System -- Lower Bakersfield Arch Assessment Unit of the San Joaquin Basin Province: Chapter 14 in Petroleum systems and geologic assessment of oil and gas in the San Joaquin Basin Province, California
Donald L. Gautier, Allegra Hosford Scheirer
2008, Professional Paper 1713-14
The Lower Bakersfield Arch Assessment Unit (AU) of the Miocene Total Petroleum System (San Joaquin Basin Province) is primarily defined by the distribution of hydrocarbons generated from biosiliceous shale of the Monterey Formation and by the distribution of basinal-facies sandstones of the Stevens sand of Eckis (1940; hereafter referred to...
A four-dimensional petroleum systems model for the San Joaquin Basin Province, California: Chapter 12 in Petroleum systems and geologic assessment of oil and gas in the San Joaquin Basin Province, California
Kenneth E. Peters, Leslie B. Magoon, Carolyn Lampe, Allegra Hosford Scheirer, Paul G. Lillis, Donald L. Gautier
2008, Professional Paper 1713-12
A calibrated numerical model depicts the geometry and three-dimensional (3-D) evolution of petroleum systems through time (4-D) in a 249 x 309 km (155 x 192 mi) area covering all of the San Joaquin Basin Province of California. Model input includes 3-D structural and stratigraphic data for key horizons and...
